*{
	padding: 0px;
	margin:0px;
}

#lanmu ul li {
	list-style-type: none;
	color:#fff;
	text-align: center;
	padding: 5px 15px;
	margin-bottom: 2px;
	background: #999;
	width:auto;
}
#lanmu ul{	border: solid 1px #DCE2E3;
	background: #fff;
	width: 170px;
	/*padding: 0 25px;*/
	height: 200px;
	overflow: auto;
	
}
.ico{
	text-align:center;
	height: 200px;
	line-height: 200px;
	width: 100px;
}
 #parent,#child,.ico{
	float: left;
}
#lanmu #child ul{
	display: none;
}
#lanmu #child .on{
	display: block;
}